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Public transport within Greater Tokyo is dominated by the world`s most extensive urban rail network as of May 2014, the article Tokyo rail list lists 158 lines, 48 operators, 4,714.5 km of operational track and 2,210 stations [although stations recounted for each operator] of clean and efficient surface trains and subways run by a variety of operators, with buses, trams, monorails, and other modes supporting the railway lines.